Drill point fastener

A fastener for joining objects, comprising:

• a proximal head adapted for receiving torque to rotate the fastener;
• an annular tapered portion joined to the head;
• and
• a shank portion joined to and extending from the annular tapered portion, the shank portion having a first thread and a second thread radially located 180 degrees from the first thread and between convolutions of the first thread, the shank terminating at a distal tapered drill point remote from the head, the tapered point adapted to extend through a preformed aperture in one or more of the objects or to create the aperture as the drill point is rotationally forced against the object, a major diameter of the first thread changes from a first diameter.

A fastener comprising:

• an elongated shank;
• a head at a distal end of the shank;
• a drill point at a terminal end of the shank which is opposite to the distal end;
• and
• a first thread and a second thread provided along the shank between the head and the drill point, wherein
• the second thread stops in an axial direction before the first thread ends, the second thread is radially located 180 degrees from the first thread, a major diameter of the first thread changes from a first diameter to a second diameter, and a major diameter of the second thread is equal to the first diameter.